New magnetic field detector could improve medical imaging

April 7, 2015 6:01 PM

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Magnetic field detectors, or magnetometers, are used for metal detection, medical imaging and geological observation, but the devices as currently designed have limitations. Many require "buffer gas" chambers filled with caesium vapor, which are hefty and expensive. Some work within only a narrow frequency range.

The new device, detailed in the latest issue of Nature Physics, attempts to improve upon a magnetometer technique using synthetic diamonds.